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The acute effects of beta-adrenergic stimulation on myocardial stiffness were evaluated. New-Zealand white rabbits were treated with saline (control group) or doxorubicin to induce heart failure (HF) (DOXO-HF group). Effects of isoprenaline (10(-10)-10(-5) M), a non-selective beta-adrenergic agonist, were tested in papillary muscles from both groups. In the control group, the effects of isoprenaline were also e...
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To describe left ventricular (LV) function comprehensively, it is crucial to characterize precisely transmitral, intraventricular and transaortic pressure-flow relations. The site of measurement is important; as the measurement location is moved from the mitral valve toward the apex and the outflow tract, important regional pressure differences are recorded inside the LV. These intraventricular pressure gradien...
The determination of hand grip strength is an objective method of evaluation of upper members' integrity. It is also used as a general health indicator. Data about grip strength values in healthy children is useful in the research and diagnosis of diseases that interfere with grip force. The aim of this study was to determine average values of children hand grip strength by age and evaluate its relation with we...
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